Patent US2993126A successfully refreshed from Google Patents.
US2993126A
Expired / Lapsed
US
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Filamentary semiconductor device
Assignee: Siemens and Halske AG
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Filing: 1956-11-07
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Granted: 1961-07-18
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Expires: 1976-11-07
Abstract
No abstract record available.
Inventors
- 👤 Dorendorf Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2600500A
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US2761020A
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US2769926A
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US2836797A
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US2801340A
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US2801348A
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US2832898A
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US2814735A
Cited
US2829075A
Cited
US2835613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |